Uhmm, who do you think designed and installed all the security measures in Luthor's lair? Who calculated the precise impact point on the fault line? Who knew how to recalibrate the missiles' trajectory? Who built and installed the remote controls in the car Luthor wrecked to distract the military convoy. Who built an alpha wave detection device out of prison scraps, and a 3-d hologram projector to fool the guard?

Say what you want about Silver Age Almighty Superman turning back time, but in no way is Luthor merely an "evil real estate developer".